Transition metals (Mn, Ni, Co) doping in TiO2 nanoparticles and their effect on degradation of diethyl phthalate

Kaur, Ravneet; Singla, Pankil; Singh, K.

doi:10.1007/s13762-017-1573-y

Cited by 15 publications

(8 citation statements)

References 36 publications

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“…Under these conditions, TiO2 would not be expected to have a high photocatalytic activity and therefore it could be debated as to whether a comparison of activity using a broader spectrum light source would be more suitable. In contrast however, the work by Singla et al and Kaur et al showed the impact of transition metal doping on TiO2 for DEP degradation (Kaur et al, 2018;Singla et al, 2016). In both studies a mercury lamp with a peak emission of 365 nm was used, which demonstrated all the doped samples (Ni, Mn and Co) achieved enhanced DEP degradation over that of undoped TiO2.…”

Section: α-Fe2o3mentioning

confidence: 96%

Removal of phthalates from aqueous solution by semiconductor photocatalysis: A review

Pang

Skillen

Gunaratne

et al. 2021

Journal of Hazardous Materials

104

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While phthalate esters are commonly used as plasticizers to improve the flexibility and workability of polymeric materials, their presence and detection in various environments has become a significant concern. Phthalate esters are known to have endocrine-disrupting effects, which affects reproductive health and physical development. As a result, there is now increased focus and urgency to develop effective and energy efficient technologies capable of removing these harmful compounds from the environment. This review explores the use of semiconductor photocatalysis as an efficient and promising solution towards achieving removal and degradation of phthalate esters. A comprehensive review of photocatalysts reported in the literature demonstrates the range of materials including commercial TiO2, solar activated catalysts and composite materials capable of enhancing adsorption and degradation. The degradation pathways and kinetics are also considered to provide the reader with an insight into the photocatalytic mechanism of removal. In addition, through the use of two key platforms (the technology readiness level scale and electrical energy per order), the crucial parameters associated with advancing photocatalysis for phthalate ester removal are discussed. These include enhanced surface interaction, catalyst platform development, improved light delivery systems and overall system energy requirements with a view towards pilot scale and industrial deployment.

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Section: α-Fe2o3mentioning

confidence: 96%

Removal of phthalates from aqueous solution by semiconductor photocatalysis: A review

Pang

Skillen

Gunaratne

et al. 2021

Journal of Hazardous Materials

104

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Section: Cdsmentioning

confidence: 99%

“…In most studies, TiO2 is modified by elemental doping to optimally absorbed the light energy to drive the photocatalytic reaction [137,138,139,140,141]. Kaur et al [137] studied the transition metal-doped TiO2 for the photocatalytic degradation of diethyl phthalate. They observed a narrower bandgap value in the doped TiO2 as compared to undoped TiO2, which resulted in a better photocatalytic performance.…”

Section: Cdsmentioning

confidence: 99%

Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water

Tubillah

Chandren

2022

Bull. Chem. React. Eng. Catal.

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In this era of globalization, plastic is regarded as one of the most versatile innovations, finding its uses ranging from packaging, automotive, agriculture, and construction to the medical and pharmaceutical industries. Unfortunately, the single-use nature of plastics leads to ecological and environmental problems. Among conventional disposal management of plastic waste are landfilling dumping, incineration, and recycling. However, not all plastic waste goes into disposal management and ends up accumulating in lakes, rivers, and seas. In the aquatic environment, the action of photochemical weathering plastics has resulted in the release of chemical additives such as phthalic acid esters (PAEs), an important plasticizer added to plastic products to improve their softness, flexibility, and durability. Nowadays, PAEs have been ubiquitously detected in our environment and numerous organisms are exposed to PAEs to some extent. As PAEs carry endocrine disruptive and carcinogenicity properties, an urgent search for the development of an efficient and effective method to remove PAEs from the environment is needed. As a viable option, titania (TiO2) photocatalysis is a promising tool to combat the PAEs contamination in our environment owing to its high photocatalytic activity, cost-effectiveness, and its ability to totally mineralize PAEs into carbon dioxide and water. Hence, this paper aims to highlight the concerning issue of the contamination of PAEs in our aquatic environments and the summary of the removal of PAEs by TiO2 photocatalysis. This review concerning the significance of knowledge on environmental PAEs would hopefully spark huge interest and future development to tackle this plastic-associated pollutant. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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“…TiO 2 nanoparticles have attracted considerable attention as a photocatalyst for the degradation of various organic pollutants [1][2][3][4]. Due to being stable, inexpensive, having high photocatalytic activity, nontoxicity, and electron transfer to molecular oxygen, TiO 2 has turned into one of the most popular photocatalysts [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Unfortunately, TiO 2 is a semiconductor with a large band gap energy (Eg) that is 3.2 eV for the anatase phase, which is equal to a wavelength of 387 nm, allowing it to have high activity only under UV light or be less active under visible light [5,[7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…Due to being stable, inexpensive, having high photocatalytic activity, nontoxicity, and electron transfer to molecular oxygen, TiO 2 has turned into one of the most popular photocatalysts [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Unfortunately, TiO 2 is a semiconductor with a large band gap energy (Eg) that is 3.2 eV for the anatase phase, which is equal to a wavelength of 387 nm, allowing it to have high activity only under UV light or be less active under visible light [5,[7][8][9][10][11][12][13][14][15]. This confines the application of TiO 2 under sunlight because sunlight only contains about 3-5% UV light and dominantly consists of visible light [5,7].…”

Section: Introductionmentioning

confidence: 99%

Doping TiO2 with Fe from iron rusty waste for enhancing its activity under visible light in the Congo red dye photodegradation

Wahyuni

Lestari²,

Cinjana³

et al. 2023

J. Eng. Appl. Sci.

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An afford to enhance TiO2 activity under visible light as well as to utilize the iron rusty waste, has been conducted by doping Fe from the waste into TiO2. The doping was performed by sol-gel method of titania tetra isopropoxide with Fe3+ ions dissolved from the iron rust waste. In the doping, the concentration of Fe3+ was varied giving various mole ratios of TiO2:Fe. The doped TiO2 photocatalysts were characterized using FTIR, XRD, SRUV, and SEM-EDX instruments. The photocatalytic activity of the doped TiO2 was evaluated by photodegradation of Congo red under visible light. The effect of some parameters that govern the photodegradation process such as the amount of Fe dopant, reaction time, photocatalyst mass, solution pH, and initial concentration of dye was also studied. The characterization results reveal that Fe3+ ions from the rusty waste have been doped into TiO2 which can remarkably narrow the band gap energy (Eg), shifting into the visible zone. In accordance, the activity of TiO2 under visible light in the dye photodegradation is considerably enhanced. The Eg decreasing and actively improving the doped TiO2 are controlled by the amount of Fe dopant, and the most effective Eg decreasing is shown by TiO2–Fe (1:0.8), but the highest activity is observed for TiO2–Fe (1:0.4). It is also found that the highest photodegradation of Congo red 5 mg/L in 50 mL of the solution over TiO2–Fe (1:0.4) under visible light, that is about 99%, can be reached by applying 60 mg of the photocatalyst mass, in 60 min, and solution pH 5. It is implied that the rusty waste can be utilized to prepare the visible responsive photocatalyst that can be used for preventing dye pollution.

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Transition metals (Mn, Ni, Co) doping in TiO2 nanoparticles and their effect on degradation of diethyl phthalate

Cited by 15 publications

References 36 publications

Removal of phthalates from aqueous solution by semiconductor photocatalysis: A review

Removal of phthalates from aqueous solution by semiconductor photocatalysis: A review

Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water

Doping TiO2 with Fe from iron rusty waste for enhancing its activity under visible light in the Congo red dye photodegradation

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